55499069 has 8 divisors (see below), whose sum is σ = 59909760. Its totient is φ = 51254896.

The previous prime is 55499051. The next prime is 55499099. The reversal of 55499069 is 96099455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55499069 - 2⁸ = 55498813 is a prime.

It is a super-2 number, since 2×55499069² = 6160293319733522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55499009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40937 + ... + 42270.

It is an arithmetic number, because the mean of its divisors is an integer number (7488720).

Almost surely, 2^55499069 is an apocalyptic number.

It is an amenable number.

55499069 is a deficient number, since it is larger than the sum of its proper divisors (4410691).

55499069 is a wasteful number, since it uses less digits than its factorization.

55499069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83259.

The product of its (nonzero) digits is 437400, while the sum is 47.

The square root of 55499069 is about 7449.7697279849. The cubic root of 55499069 is about 381.4420484007.

The spelling of 55499069 in words is "fifty-five million, four hundred ninety-nine thousand, sixty-nine".